He wrote to NRL CEO Todd Greenberg and asked him “not to miss a moment in history”.

Greenberg responded: “One of the key pillars of rugby league is inclusiveness – and the game has a duty to back up its policy with action,” Greenberg said.

“There is a place for everyone in rugby league. It might be as a junior, as a volunteer, as a match official or as an NRL player. And we need to treat everyone equally both on and off the field and that’s why we will publicly support the same-sex marriage proposal.”

“I have had four friends commit suicide because they have struggled with who they are. This isn’t just about marriage. It’s about saving lives and telling young people that they are OK. There is nothing wrong with them,” he said.

“Rugby league has the power to do that because so many people watch it and love it and I’m proud that Todd and the league have taken this step.”

The AFL publicly announced their support for marriage equality back in 2014.

Roberts has said he plans to contact other sporting bodies in the coming weeks to seek their support.

If you need someone to talk to, help is available from QLife on 1800 184 527 or online at QLife.org.au, Kids Helpline on 1800 55 1800, Lifeline on 13 11 14, or beyondblue on 1300 22 4636.